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在f=3-30kHz和Bm=0.1-1.0T范围内,研究了高Br纳米晶Fe73Cu1Nb2V1.5Si13.5B9合金的中频P/f的行为。在中频范围内,研究了“磁体”数n与过剩场Hexc的关系。结果表明,用损耗统计理论中的相关方程和参数能很好地描述中频损耗的非线性行为。在f=30-100kHz和Bm=0.05-1T范围内,研究了高频P/f对f的行为。在相当宽的高频范围内,P/f对f的行为呈现准线性性,可用线性方程P/f=Peh+Keclf很好地表示。所研究的频率范围大约可分为两个范围,在这两范围内,Peh和Kecl分别具有不同值。一系列计算表明,依据方程P/f=Ph+Pcl/f+Pexc/f的损耗分离和统计理论中的相关方程不适用于正确描述高频损耗行为。
The intermediate frequency P / f behavior of high Br nanocrystalline Fe73Cu1Nb2V1.5Si13.5B9 alloy was investigated at f = 3-30kHz and Bm = 0.1-1.0T. In the intermediate frequency range, the relationship between “number of magnets” n and excess field Hexc was studied. The results show that the non-linear behavior of IF loss can be described well by using the relevant equations and parameters in loss statistics theory. In the range of f = 30-100 kHz and Bm = 0.05-1T, the behavior of high-frequency P / f on f is studied. P / f behaves quasi-linear to f over a wide range of high frequencies and is well represented by the linear equation P / f = Peh + Keclf. The studied frequency range can be roughly divided into two ranges where Peh and Kecl have different values, respectively. A series of calculations show that the correlation equations in the loss separation and statistical theory according to the equation P / f = Ph + Pcl / f + Pexc / f are not suitable for the correct description of high frequency loss behavior.